/* 白鲸加速器官网 - 深海青 + 珊瑚橙主题 */
:root {
    --bj-primary: #0e7490;
    --bj-primary-dark: #155e75;
    --bj-accent: #f97316;
    --bj-accent-hover: #ea580c;
    --bj-bg: #f0fdfa;
    --bj-surface: #ffffff;
    --bj-text: #134e4a;
    --bj-text-muted: #5b7c7a;
    --bj-border: #99f6e4;
    --bj-border-soft: #ccfbf1;
    --bj-nav-bg: #042f2e;
    --bj-radius: 12px;
    --bj-radius-lg: 20px;
    --bj-shadow: 0 4px 24px rgba(14, 116, 144, 0.08);
    --bj-transition: 0.25s ease;
    --primary-color: var(--bj-primary);
    --secondary-color: var(--bj-primary-dark);
    --accent-color: var(--bj-accent);
    --text-color: var(--bj-text);
    --light-bg: var(--bj-bg);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body.bj-page,
body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: var(--bj-text);
    line-height: 1.65;
    background: var(--bj-bg);
    margin: 0;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--bj-primary);
    text-decoration: none;
    transition: color var(--bj-transition);
}

a:hover {
    color: var(--bj-accent);
}

/* ========== 导航 ========== */
.z17299navbar.bj-nav,
.bj-nav.z17299navbar {
    background: var(--bj-nav-bg);
    padding: 0.65rem 0;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.15);
}

.bj-nav .navbar-brand img {
    height: 42px;
    width: auto;
}

.bj-nav .z17299nav-link,
.bj-nav .nav-link {
    color: #ccfbf1 !important;
    font-weight: 500;
    padding: 0.45rem 0.85rem !important;
    border-radius: 8px;
    font-size: 0.95rem;
}

.bj-nav .z17299nav-link:hover,
.bj-nav .nav-link:hover {
    color: #fff !important;
    background: rgba(255, 255, 255, 0.08);
}

.bj-nav .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.35);
}

.bj-nav .navbar-toggler-icon {
    filter: invert(1);
}

@media (max-width: 991px) {
    .bj-nav .navbar-collapse {
        background: #064e3b;
        margin-top: 0.75rem;
        padding: 0.75rem 1rem;
        border-radius: var(--bj-radius);
        max-height: 70vh;
        overflow-y: auto;
    }
}

/* ========== Hero ========== */
.bj-hero.z17299hero-section {
    background: linear-gradient(145deg, #042f2e 0%, #0e7490 55%, #14b8a6 100%);
    color: #fff;
    padding: 4.5rem 0 4rem;
    position: relative;
    overflow: hidden;
}

.bj-hero::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 48px;
    background: var(--bj-bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}

.bj-hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 2.5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.bj-eyebrow {
    display: inline-block;
    font-size: 0.8rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: rgba(255, 255, 255, 0.12);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    margin-bottom: 1rem;
    color: #99f6e4;
}

.z17299hero-title {
    font-size: clamp(1.85rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.z17299hero-subtitle {
    font-size: 1.05rem;
    opacity: 0.92;
    margin-bottom: 1.5rem;
    max-width: 540px;
}

.z17299hero-subtitle strong {
    color: #fef3c7;
    font-weight: 600;
}

.bj-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.bj-hero-frame {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--bj-radius-lg);
    padding: 1.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z17299hero-image {
    max-width: 280px;
    width: 100%;
    border-radius: var(--bj-radius);
    margin: 0 auto;
    box-shadow: none;
}

.z17299hero-image-shadow {
    display: none;
}

/* ========== 按钮 ========== */
.bj-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.35rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    transition: transform var(--bj-transition), box-shadow var(--bj-transition);
    white-space: nowrap;
}

.bj-btn:hover {
    transform: translateY(-2px);
}

.bj-btn-light {
    background: #fff;
    color: var(--bj-primary-dark);
}

.bj-btn-accent,
.bj-btn-primary {
    background: var(--bj-accent);
    color: #fff;
}

.bj-btn-accent:hover,
.bj-btn-primary:hover {
    background: var(--bj-accent-hover);
    color: #fff;
}

.bj-btn-outline {
    background: transparent;
    border: 2px solid var(--bj-primary);
    color: var(--bj-primary);
}

.bj-btn-outline:hover {
    background: var(--bj-primary);
    color: #fff;
}

/* ========== 通用区块 ========== */
.bj-section {
    padding: 4rem 0;
}

.bj-section-head {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 2.5rem;
}

.bj-section-head h2 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--bj-primary-dark);
    margin-bottom: 0.5rem;
}

.bj-section-head p {
    color: var(--bj-text-muted);
    margin: 0;
}

/* ========== Intro ========== */
.bj-intro {
    padding: 2rem 0;
    background: var(--bj-surface);
    border-bottom: 1px solid var(--bj-border-soft);
}

.bj-intro-inner {
    max-width: 820px;
    margin: 0 auto;
    text-align: center;
    padding: 0 1rem;
}

.bj-intro-inner p {
    margin: 0;
    font-size: 1.05rem;
    color: var(--bj-text-muted);
}

/* ========== Bento 特性 ========== */
.bj-features {
    background: var(--bj-bg);
}

.bj-bento {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

.bj-bento-wide {
    grid-column: 1 / -1;
}

.bj-bento-item.z17299feature-card {
    background: var(--bj-surface);
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius-lg);
    padding: 1.75rem;
    box-shadow: var(--bj-shadow);
    height: auto;
    transition: border-color var(--bj-transition), box-shadow var(--bj-transition);
}

.bj-bento-item:hover {
    border-color: var(--bj-border);
    box-shadow: 0 8px 32px rgba(14, 116, 144, 0.12);
    transform: none;
}

.z17299feature-icon {
    width: 52px;
    height: 52px;
    font-size: 1.35rem;
    color: var(--bj-primary);
    background: var(--bj-border-soft);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 1rem;
}

.bj-bento-item h3 {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
    color: var(--bj-primary-dark);
}

.bj-bento-item p {
    margin: 0;
    color: var(--bj-text-muted);
    font-size: 0.95rem;
}

/* ========== 知识区 ========== */
.bj-knowledge {
    background: var(--bj-surface);
}

.bj-knowledge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.bj-knowledge-card {
    background: var(--bj-bg);
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius);
    padding: 1.5rem;
    height: 100%;
}

.bj-knowledge-card h3 {
    font-size: 1rem;
    color: var(--bj-primary-dark);
    margin-bottom: 0.65rem;
}

.bj-knowledge-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--bj-text-muted);
}

/* ========== 统计 ========== */
.bj-stats.z17299stats-section {
    background: linear-gradient(90deg, var(--bj-primary-dark), var(--bj-primary));
    padding: 2.5rem 0;
    color: #fff;
}

.bj-stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    text-align: center;
}

.z17299stat-number {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    line-height: 1.2;
}

.z17299stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: 0.25rem;
}

/* ========== 下载 ========== */
.bj-download.z17299download-section {
    background: var(--bj-bg);
    padding: 4rem 0;
}

.bj-download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 960px;
    margin: 0 auto;
}

.bj-dl-panel.z17299download-card {
    background: var(--bj-surface);
    border: 1px solid var(--bj-border);
    border-radius: var(--bj-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--bj-shadow);
    display: flex;
    flex-direction: column;
    height: 100%;
    overflow: hidden;
}

.bj-dl-panel:hover {
    transform: none;
    border-color: var(--bj-primary);
}

.bj-dl-head {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--bj-border-soft);
}

.bj-dl-head h3 {
    font-size: 1.1rem;
    margin: 0 0 0.2rem;
    color: var(--bj-primary-dark);
}

.bj-dl-head p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--bj-text-muted);
}

.z17299platform-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.z17299ios-icon {
    background: linear-gradient(135deg, #0e7490, #155e75);
    color: #fff;
}

.z17299android-icon {
    background: linear-gradient(135deg, var(--bj-accent), var(--bj-accent-hover));
    color: #fff;
}

.bj-dl-list.z17299download-info {
    list-style: none;
    padding: 1rem;
    margin: 0 0 1.25rem;
    background: var(--bj-bg);
    border-radius: var(--bj-radius);
    flex: 1;
}

.bj-dl-list .z17299info-item {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    color: var(--bj-text-muted);
}

.bj-dl-list .z17299info-item:last-child {
    margin-bottom: 0;
}

.bj-dl-list .z17299info-item i {
    color: var(--bj-primary);
    margin-top: 0.15rem;
}

.z17299download-action {
    margin-top: auto;
}

.z17299download-action .bj-btn {
    width: 100%;
}

/* ========== 安全 ========== */
.bj-security.z17299security-section {
    background: var(--bj-surface);
    padding: 4rem 0;
}

.bj-security-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}

.bj-sec-card.z17299security-card {
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius);
    padding: 1.35rem;
    background: var(--bj-bg);
    height: 100%;
    box-shadow: none;
    text-align: center;
}

.bj-sec-card:hover {
    transform: none;
    border-color: var(--bj-border);
    box-shadow: var(--bj-shadow);
}

.z17299security-icon {
    width: 48px;
    height: 48px;
    font-size: 1.1rem;
    margin: 0 auto 0.85rem;
    background: var(--bj-primary);
    border-radius: 12px;
}

.bj-sec-card h3 {
    font-size: 1rem;
    color: var(--bj-primary-dark);
    margin-bottom: 0.75rem;
    text-align: center;
}

.z17299security-features {
    background: var(--bj-surface);
    padding: 0.85rem;
    border-radius: 8px;
    text-align: left;
}

.z17299feature-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    color: var(--bj-text-muted);
    margin-bottom: 0.4rem;
}

.z17299feature-item:last-child {
    margin-bottom: 0;
}

.z17299feature-item i {
    color: var(--bj-primary);
    font-size: 0.8rem;
}

/* ========== FAQ ========== */
.bj-faq {
    background: var(--bj-bg);
}

.bj-faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.bj-faq-item {
    background: var(--bj-surface);
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius);
    padding: 1.35rem 1.5rem;
}

.bj-faq-item h3 {
    font-size: 1rem;
    color: var(--bj-primary-dark);
    margin-bottom: 0.5rem;
}

.bj-faq-item p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--bj-text-muted);
}

/* ========== 文章 ========== */
.bj-articles {
    background: var(--bj-surface);
    border-top: 1px solid var(--bj-border-soft);
}

.bj-articles-head {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.bj-articles-head h2 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--bj-primary-dark);
}

.bj-articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.bj-article-card {
    background: var(--bj-bg);
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.bj-article-thumb {
    display: block;
    overflow: hidden;
}

.z17299thumb-home {
    width: 100%;
    height: 110px;
    object-fit: cover;
}

.bj-article-body {
    padding: 0.75rem;
    flex: 1;
}

.bj-article-meta {
    font-size: 0.75rem;
    color: var(--bj-text-muted);
    display: block;
    margin-bottom: 0.35rem;
}

.bj-article-body h3 {
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.4;
}

.bj-article-body h3 a {
    color: var(--bj-text);
}

.bj-article-body h3 a:hover {
    color: var(--bj-primary);
}

/* ========== 页脚 ========== */
.z17299footer.bj-footer {
    background: var(--bj-nav-bg);
    color: #99f6e4;
    padding: 3rem 0 1.5rem;
}

.bj-footer-grid {
    display: grid;
    grid-template-columns: 1.4fr repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.bj-footer-brand p {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-top: 0.75rem;
    max-width: 280px;
}

.z17299footer-title {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.z17299footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z17299footer-links li {
    margin-bottom: 0.5rem;
}

.z17299footer-link,
.bj-footer a {
    color: #99f6e4;
    font-size: 0.9rem;
}

.z17299footer-link:hover,
.bj-footer a:hover {
    color: var(--bj-accent);
}

.bj-friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.bj-friend-links a {
    font-size: 0.85rem;
}

.bj-footer-bottom,
.z17299footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding-top: 1.25rem;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.8;
}

.bj-footer-bottom p {
    margin: 0.35rem 0;
}

/* ========== 列表页 / 内页 ========== */
.bj-inner-page {
    padding: 2.5rem 0 3rem;
    background: var(--bj-bg);
    min-height: 50vh;
}

.bj-inner-page .card {
    border: 1px solid var(--bj-border-soft);
    border-radius: var(--bj-radius);
    overflow: hidden;
    box-shadow: var(--bj-shadow);
}

.bj-inner-page .card-body {
    padding: 1.25rem;
}

.bj-inner-page .card h3,
.bj-inner-page .card h5 {
    color: var(--bj-primary-dark);
}

.z17299article-content {
    line-height: 1.8;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.z17299article-content img {
    max-width: 100%;
    height: auto;
}

.z17299meta-tags .z17299tagitem a {
    display: inline-block;
    padding: 0.25rem 0.65rem;
    background: var(--bj-border-soft);
    border-radius: 6px;
    font-size: 0.85rem;
    margin: 0.15rem;
}

.pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.pagebar .pagelist li {
    display: inline-flex;
}

.z17299thumb-list,
.z17299thumb-related {
    width: 100%;
    height: 84px;
    object-fit: cover;
    border-radius: 8px;
}

.z17299thumb-side {
    width: 100%;
    height: 54px;
    object-fit: cover;
    border-radius: 6px;
}

.bj-side-thumb {
    width: 72px;
    flex: 0 0 72px;
}

.z17299thumb-cover {
    max-width: 100%;
    width: 100%;
    height: auto;
    max-height: 320px;
    object-fit: cover;
    border-radius: var(--bj-radius);
}

.listbox .e2 li:last-child {
    border-bottom: none !important;
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
}

/* ========== 响应式 ========== */
@media (max-width: 1199px) {
    .bj-articles-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 991px) {
    .bj-hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z17299hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .bj-hero-actions {
        justify-content: center;
    }

    .bj-bento {
        grid-template-columns: 1fr;
    }

    .bj-bento-wide {
        grid-column: auto;
    }

    .bj-knowledge-grid {
        grid-template-columns: 1fr;
    }

    .bj-stats-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .bj-security-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bj-footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .bj-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 767px) {
    .bj-section {
        padding: 3rem 0;
    }

    .bj-hero.z17299hero-section {
        padding: 3rem 0 2.5rem;
    }

    .bj-hero-actions {
        flex-direction: column;
        width: 100%;
    }

    .bj-hero-actions .bj-btn {
        width: 100%;
    }

    .bj-download-grid {
        grid-template-columns: 1fr;
    }

    .bj-faq-grid {
        grid-template-columns: 1fr;
    }

    .bj-stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .bj-security-grid {
        grid-template-columns: 1fr;
    }

    .bj-footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .bj-footer-brand p {
        max-width: none;
        margin-left: auto;
        margin-right: auto;
    }

    .bj-articles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bj-articles-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .z17299thumb-home {
        height: 96px;
    }

    .z17299thumb-list,
    .z17299thumb-related {
        height: 72px;
    }

    .z17299thumb-cover {
        max-height: 200px;
    }

    .bj-inner-page {
        padding: 1.5rem 0 2rem;
    }
}

@media (max-width: 575px) {
    .bj-stats-row {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .z17299stat-number {
        font-size: 1.5rem;
    }

    .bj-articles-grid {
        grid-template-columns: 1fr;
    }

    .bj-dl-head {
        flex-direction: column;
        text-align: center;
    }

    .bj-dl-list .z17299info-item {
        font-size: 0.85rem;
    }

    .z17299thumb-home {
        height: 140px;
    }

    .listbox .e2 li .row {
        flex-direction: column;
    }

    .listbox .e2 li .col-4 {
        width: 100%;
        max-width: 100%;
    }

    .listbox .e2 li .col-8 {
        width: 100%;
        max-width: 100%;
    }
}